Design and Simulation Analysis of Cold Energy Utilization System of LNG Floating Storage Regasification Unit

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhang, Gang^1 ; Li, Boyang^2 ; Zhang, Xiaorong^3 ; Wang, Qingguo^4

Qingdao Technology Center Branch COSCO Technology Center Qingdao, Qian Desong, China^1

College of Electromechanical Engineering Qingdao, University of Science and Technology, Qingdao, China^2

Department of Electromechanical Qingdao Ocean Shipping Mariner's, College Qingdao, China^3

Trainer's Office COSCO Shipping Mariners Management Co., Ltd., Dalian Branch, Dalian, China^4

关键词: Design and simulation;    Energy conservation theory;    Operating parameters;    Parameter optimization;    Peng-Robinson equations;    Refrigerated storages;    Seawater desalination;    Utilization systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022117/pdf
DOI  :  10.1088/1755-1315/300/2/022117

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper aims at the problem of cold energy utilization of LNG floating storage regasification unit (FSRU). A comprehensive LNG-FSRU cold energy utilization scheme was proposed based on ship-shore sharing. Using energy cascade theory and energy conservation theory to design a cold energy cascade utilization system that includes air separation, dry ice making, horizontal two-stage Rankine cycle power generation, seawater desalination, ship refrigerated storage, air conditioning and ice making. Using Aspen HYSYS to carry out system simulation calculation and parameter optimization to determine the optimal program and operating parameters. Establishing the mathematical model of the cold exergy utilization system to analysis cold energy efficiency by using the Peng-Robinson equation calculation method. The analysis results show that the using efficiency of cold exergy reaches 29.57% which proves that the cold utilization system of the floating LNG storage regasification plant is reliability with large economic value.